Indamines and method of using the same

ABSTRACT

A process for producing indamine by condensing 2,6-diamino pyridine on a paraphenylene diamine or a benzoquinone diimine or a paranitroso N,N-dialkyl aniline. The resulting indamine can be incorporated into a dye composition for keratinic fibers, especially human hair.

United States Patent Kalopissis et al.

July s, 1975 INDAMINES AND METHOD OF USING THE SAME Inventors: Gregoire Kalopissis, Paris; Andre Bugaut, Boulogne-sur-Seine; Francoise Estradier, Paris, all of France Assignee: Societe Anonyme dite: LOreal,

Paris, France Filed: Aug. 13, 1973 Appl. No.: 387,612

Related US. Application Data Continuation-impart of Ser. No. 131,458, April 5, 1971, abandoned.

Foreign Application Priority Data Apr. 10, 1970 Luxembourg 60702 US. Cl. 8/10; 8/101; 8/102; 8/11; 260/396 N; 424/1310. 2; 424/71 Int. Cl D06p 3/04 58 FieldofSearcli. ..8/l0.2,l1,l0;260/296R [56] References Cited UNITED STATES PATENTS 3,359,168 12/1967 Brechner et al. 8/l0.2 3,647,351 3/1972 Lange 8/102 Primary ExaminerAlbert T. Meyers Assistant Examiner-Dale R. Ore

Attorney, Agent, or FirmCushman, Darby & Cushman 57 ABSTRACT 15Claims, No Drawings INDAMINES AND METHOD OF USING THE SAME This application is a continuation-impart of our application Ser. No. 131,458, filed Apr. 5, 1971. Now abandoned.

The present invention relates to new indamines having the formula wherein R,, R R and R each represent a member selected from the group consisting of hydrogen, halogen, lower alkyl having l-4 carbon atoms and lower alkoxy having 1-4 carbon atoms, and R and R are either both hydrogen atoms, or both substituted or non-substituted lower alkyl radicals which may be identical or different, such as methyl, ethyl, butyl, hydroxyalkyl, carbamyl alkyl, piperidinoalkyl, or acylaminoalkyl radicals. Because the indamines of Formula I in the form of their free bases are generally more difficult to isolate and preserve than their salts, which are readily isolated and preserved, the present invention also relates to salts of the compounds of Formula I with organic or mineral acids, especially their acetates, tartrates, aryl sulfonates, hydrochlorides, hydrobromides, persulfates, perchlorates or double chlorides of zinc, as well as indamines that yield these compounds with zinc chloride. The indamines of the present invention can be prepared by condensing 2,6-diaminopyridine on a paraphenylenediamine having the formula:

wherein R R R R R and R have the meanings given above, said condensation being effected in an aqueous medium, an aqueous alcoholic medium or an aqueous acetonic medium in the presence of an oxidizing agent. When desired, the reaction can also involve the conversion of the resulting indamine into a salt thereof. When an aqueous alcohol medium is employed, the alcohol used can be, for instance, a lower alkanol having 1-4 carbon atoms, the alkanol being present in amounts of about 75 to percent by weight of the total aqueous alcohol medium. When an aqueous acetonic medium is employed, acetone can comprise between about 75 to 10 weight percent of the medium. The condensation reaction is generally carried out at atmospheric pressure and at a temperature ranging from about 0 to 50C. Generally the paraphenylene diamine and 2,6-diaminopyridine are employed in essentially equimolar amounts.

The oxidizing agent employed in the condensation reaction is advantageously hydrogen peroxide or a water-soluble persalt, such as an alkali persulfate or ammonium persulfate which permits ready recovery of the indamine of Formula I as an insoluble persulfate. Generally the oxidizing agent will be present in amounts ranging from about one or two times the theoretical amount to make the quinone diimine.

When the oxidizing agent used is hydrogen peroxide and when the indamine salt desired is only slightly soluble in water, the condensation of 2,6-diaminopyridine on paraphenylene diamine of Formula (II) can be followed by addition to the reaction mixture of either an acid corresponding to the desired salt, or a salt of this acid which is more soluble in water than is the desired indamine salt, for example, ammonium persulfate.

It has also been noted that even in the case where it is desired to prepare an indamine persulfate, it is often advantageous to proceed in two stages, the first stage comprising oxidizing the mixture of 2,6- diaminopyridine and paraphenylene diamine of Formula II by means of hydrogen peroxide and the second stage comprising adding the appropriate persalt to the resulting reaction mixture.

When it is desired to obtain indamine salts that are very readily soluble in water, it is necessary to operate in two stages. The first stage comprises preparing a relatively insoluble and hence isolatable indamine salt, e.g. a persulfate or a hydrochloride, and treating this salt in a second stage with an alkaline solution from which the indamine of Formula I is extracted by means of a suitable solvent, said indamine being then converted to the desired salt by addition of the corresponding acid to the solvent phase. This way of proceeding applies for cases in which it is desired to prepare, e.g. an acetate, a tartrate or a paratoluene sulfate.

Representative paraphenylene diamines that can be used in the process of this invention include, for example, paraphenylene diamine, paratoluylene diamine,

2,5-diaminoanisole, 2,5-diamino-chlorobenzene, 2- methoxy S-methyl paraphenylene diamine 2 ,6- dimethyl B-methoxy paraphenylene diamine, l ,4-

(III) R Ru wherein R R R and R have the meanings indicated above, with the proviso that at least two of these radicals do not represent hydrogen, the said condensation being effected either in an aqueous medium, or in an inert solvent such as methyl isobutylketone, acetone, dioxane, ether or benzene, in the presence of the acid that corresponds to the desired salt. Representative acids included organic acids such as acetic, tartaric, oxalic and paratoluene sulfonic acid, and mineral acids such as perchloric acid.

Representative benzoquinone diimines usefully em- NO (Iv) wherein R R R and R have the meanings given above and wherein R and R are both alkyl or substituted alkyl radicals as indicated above, or on salts of these nitroso derivatives, such as hydrochlorides or hydrobromides, the reaction being effected in an aqueous medium at a temperature between 30 and 60C or in an alcohol medium, for instance, a lower alkanol having 1-4 carbon atoms such as ethyl alcohol, especially when it is desired to isolate indamines (l) as double chlorides of zinc.

The indamines of the present invention are dyes whose solubility in water and in alcohol is quite acceptable, their solubility being generally sufficient to effect capillary water especially in a pH range of 3 to 10.

Accordingly, the present invention also relates to a new product of manufacture comprising a dye composition for dyeing keratinic fibers, especially human hair, containing in solution at least one indamine of Formula I.

The dye compositions of the present invention can include the indamines of Formula I alone, in which case they produce on white hair, shades that range from blue to green, at the end of extremely short application periods, in the order of about 3 minutes, at ambient temperature. Because of the great dyeing power of the indamines of this invention, their concentration in a dye composition can be extremely low, for instance, about 0.002% by weight of the composition. However, this concentration can vary from about 0.002 to 1% by weight.

Alternatively, the dye compositions of the present invention can include other direct dyes, eg azo dyes, an-

thraquinone dyes and nitro benzene dyes as well as oxazines, azines and indoanilines, indophenols, or indamines other than those of Formula I.

The dye compositions of the present invention impart to the hair to which they are applied shades which are rich in highlights. Further, these dye compositions can mask the red of chestnut red or brownish red hair, even when the hair in question is very dark.

The dye compositions of this invention are generally in the form of aqueous or aqueous alcohol solution which can be readily prepared by dissolving one or more of the indamines of Formula I with or without other direct dyes and the composition can also include other conventional adjuvants such as thickeners, and thus be in the form of creams and gels, wetting agents, dispersants, swelling agents, penetrating agents, emollients or perfumes. Moreover, the compositions can be packaged under pressure with conventional propellants in aerosol containers.

The pH of the dye compositions of the present invention can vary within wide limits. However, the pH generally ranges between 3.5 and 10 and preferably between 5 and 9.

The dyeing of keratinic fibers, especially human hair, using the dye compositions of the present invention is effected in the usual way by applying the composition to the fibers that are to be dyed, permitting the composition to remain in contact therewith for a time that ranges from about 3 to 30 minutes and rinsing the thus treated fibers. If desired, the rinsed fibers can be subsequently washed and dried.

In another embodiment of the present invention, the novel indamines can be employed in the production of capillary hair setting lotions. These lotions comprise an aqueous alcohol solution of at least one cosmetic resin and at least one indamine of Formula I, or one of its salts, or a double chloride of zinc and indamine, as defined above. The amount of indamine present in the hair setting lotion of the present invention can also be extremely low. Such an amount generally ranges between about 0.002 to 1% by weight of the total hair setting lotion composition.

Representative cosmetic resins that can be employed in the hair setting lotion composition of the present invention include, for instance, polyvinylpyrrolidone, having a molecular weight ranging from about 10,000 to 70,000, copolymer of crotonic acid and vinyl acetate, copolymer of vinylpyrrolidone and vinyl acetate wherein the ratio of VP to VA ranges between 50-70:- 50-30, copolymer of maleic anhydride and butylvinyl ether and the like. These resins are utilized in a proportion of about 1 to 3% by weight.

The alcohols that are suitable for the preparation of the hair setting lotions of the invention are low molecular weight alkanols, preferably ethanol or isopropanol, which are present in amounts of about 20 to 50% by weight of the total hair setting lotion composition. The pH of the hair setting lotion of this invention can range from about 3 to 10, and preferably between about 4 and 9.

Hair setting lotions of the present invention that contain as dyes only indamines of the present invention are tinting compositions which made it possible to impart an extremely lustrous sheen to chestnut-reddish or brownish-red hair, thereby masking the red thereof.

However, the hair setting lotions of this invention can also include other direct dyes such as azo dyes, anthraquinone dyes. nitrobenzene dyes, indoanilines. indophenols, or other indamines. oxazines or azines. These lotions are used in the customary way by applying the same to wet hair which has been previously washed and rinsed, followed by rolling up and drying of the hair.

The following examples illustrate the various aspects of the present invention.

EXAMPLE 1 Molecular weight calculated for ia ln s zi 317 Molecular weight measured with a Mechrolah osmometer 310 Molecular weight found by potentiometric measurement effected with perchloric acid in acetic medium 322 Calculated for Analysis C 151N503 Found C7! 56.78 56.15 56.22 H7: 599 6.09 5.85 N% 22.08 21.67 21.80

EXAMPLE 2 N-[(4'-amino 2-methoxy 3',5-dimethyl)phenyl] 3- amino 2-aza benzoquinone diimine monoacetate is prepared as follows:

There is dissolved, at ambient temperature, 0.05 mole (8.2 g) 3-methoxy 2,6-dimethyl benzoquinone diimine in 100 cc methylisobutylketone, and there is immediately added to his resulting solution 0.05 mole (5.45 g) 2,6-diamino pyridine in 100 cc dioxane to which 4 cc acetic acid have been added. The reaction mixture is then immediately filtered, yielding 6 g of the desired indamine, as monoacetate thereof. The product is practically pure and melts with decomposition between 125 and 128.

Molecular weight calculated for ui zi s a 331 Molecular weight found by potentiometric measurement effected with perchloric acid in acetic medium 340 Calculated for Analysis C H N O; Found C7: 58.00 56.97 56.85 H71 6.34 6.34 6.44 N7r 21.14 20.86 20.98

EXAMPLE 3 N-[(4-amino 2-methoxy)phenyl] 3-amino 2-aza benzoquinone diimine persulfate is prepared as follows:

A first solution is prepared by dissolving 0.05 mole (6.9 g) methoxyparaphenylene diamine in a mixture of 50 cc acetone and 30 cc water. A second solution is prepared by dissolving 0.05 mole (5.45 g) 2,6- diaminopyridine in 50 cc acetone. The two solutions are mixed and allowed to cool. There is then added 25 cc ammonia (22Be) and 50 cc hydrogen peroxide (40 volumes). After a few minutes, there are added sufficient acetic acid to adjust the pH 8 and 20 g ammonium persulfate dissolved in 40 cc ice water. The reaction mixture is then immediately filtered, yielding 8 g of the desired indamine, as the persulfate, the said product being chromatographically pure.

EXAMPLE 4 N-[(4-amino 2-methoxy)phenyl] 3-amino 2-aza benzoquinone diimine paratoluene sulfonate is prepared as follows:

The indamine persulfate (7 g) of Example 3 is treated with 100 cc of an aqueous solution of 10 cc ammonia (22Be). The indamine that is released is immediately extracted, using a solution of methylisobutylketone. There is added to the extraction solvent paratoluene sulfonic acid in sufficient quantity to precipitate the indamine as paratoluene sulfonate. The resulting crystals are dried and washed, using methylisobutylketone. The product is chromatographically pure.

EXAMPLE 5 N-[(4-amino 3-chloro)phenyl] 3-amino 2-aza benzoquinone diimine persulfate is prepared as follows:

A first solution is prepared by dissolving 0.05 mole (7.1 g) chloroparaphenylene diamine in 100 cc acetone to which there has previously been added 40 cc water and 10 cc ammonia (22 Be). A second solution is prepared by dissolving 0.05 mole (5.45 g) 2,6- diaminopyridine in 25 cc acetone to which 10 cc water have been added. The two solutions are mixed and 25 cc ammonia (22Be) are added, and then cc hydrogen peroxide (40 volumes). The reaction mixture, which is allowed to stand for two hours at ambient temperature is then neutralized with acetic acid, cooled in an ice-salt mixture. To the thus cooled reaction mixture there are then added 20 g ammonium persulfate in solution in 50 cc water. The reaction mixture is then filtered, yielding 8 g of the desired indamine, as persulfate. This product is chromatographically pure.

EXAMPLE 6 N-[(4"amino 3-chloro)phenyl] 3-amino 2-aza benzoquinone diimine monoacetate is prepared as follows:

Six grams of the indamine persulfate obtained in Example 5 are treated with cc of an aqueous solution of 8 cc ammonia (22Be) and the freed indamine is immediately extracted, using methyl isobutylketone. Acetic acid in amounts sufficient to precipitate the indamine acetate is added to the extraction solvent. There is thus obtained, after filtering, 2.5 g of the chromatographically pure product which melts with decomposition between 134 and 136.

Molecular weight calculated for N-[(4'-amino)phenyl] 3-amino 2-aza benzoquinone diimine monoacetate, monohydrate is prepared as follows:

There is first prepared, by a process identical to that described in Example 3 above, the persulfate of N-[(4- amino)phenyl]-3-amino 2-aza benzoquinone diimine.

The crude persulfate (6 g) that is obtained is treated with 80 cc of an aqueous solution of 8 cc ammonia (22Be) with immediate extraction of the freed indamine, using methylisobutylketone. Acetic acid in an amount sufficient to precipitate the desired indamine acetate is added to the extraction solvent. The reaction mixture is then immediately filtered, the resulting above product then being washed with acetone and dried on P This product is chromatographically pure and metls with decomposition at 137.

Molecular weight calculated for N-[(4'-dimethylamino)phenyl] 3-amin o 2-aza benzoquinone diimine hydrochloride is prepared as follows:

To a solution of 0.0254 mole (4.73 g) paranitrosodimethylaniline HCl in 50 cc water at 50C, there is gradually added a solution of 0.0254 mole (2.77 g) 2,6-diaminopyridine in 50 cc water. The reaction mixture is held for minutes at this temperature, and then for one hour at ambient temperature. The reaction mixture is then filtered, yielding 4 g of the above indamine as monohydrochloride. This product is then washed with ice water to remove any traces of the nitroso derivative of the starting material that it may contain. The product is chromatographically pure and melts with decomposition between 240 and 242.

EXAMPLE 9 N-[(4-dimethylamino)phenyl] 3-amino 2-aza benzoquinone diimine acetate is prepared as follows:

0.03 mole (8.31 g) of the indamine hydrochloride prepared as in Example 8 is treated by 200 cc of a normal sodium hydroxide solution, thereby releasing the indamine which is extracted with methylisobutylketone. 5 cc of acetic acid are immediately added to the extraction solvent. The reaction mixture is then filtered, yielding 4.2 g of N- [(4-dimethylamino) phenyl] 3-amino 2-aza benzoquinone diimine acetate which melts with decomposition between and 172.

Molecular weight calculated for rs m s z 7 30 1 Molecular weight found by potentiometn'c measurement in acetic medium, using perchloric acid 287 Calculated for Analysis C I-1 N 0 Found C% 59.80 58.78 58.69 H% 6.31 6.30 6.28 N% 23.25 23.23 23.36

EXAMPLE l0 N-[(4'-dimethylamino)phenyl] 3-amino 2-aza benzoquinone diimine perchlorate is prepared as follows:

0.01 mole (2.09 g) N,N-dimethyl paraphenylene diamine dihydrochloride and 0.01 mole 2,6- diaminopyridine are dissolved in 20 cc water to which 5 cc ammonia (22Be) have been added. There are gradually added, with agitation, 20 cc hydrogen peroxide (20 volumes). The reaction mixture is allowed to stand for 20 minutes at ambient temperature, 20 g sodium perchlorate are then added, with cooling to 0C for three hours. The azaindamine perchlorate is then isolated by filtering, the product then being washed with a small amount of ice water and vacuum dried. The product is chromatographically pure and melts with decomposition at 210C.

EXAMPLE 1 1 The double chloride of zinc and N-[(4-ethyl-,B- acetylaminoethyl amino)phenyl] 3-amino 2-aza benzoquinone diimine is prepared as follows:

To 40 cc absolute ethyl alcohol, there are added 0.01 mole (1.09 g) of 2,6-diaminopyridine, 0.01 mole para nitroso N,N-ethyl-B-acetylaminoethyl aniline (2.35 g) and 1.6 g anhydrous zinc chloride. The reaction mixture is heated to reflux for 2 hours. The double chloride of zinc and azaindamine is then isolated by filtering the reaction mixture and the product is washed with hot ethanol and dried under vacuum. 2.1 g of the chromatographically pure product is obtained.

EXAMPLE 12 EXAMPLE 1 3 N-[ 4'-di-B-hydroxyethylamino )phenyl] 3-amino Calculated for Analysis C -,H: lN ,O B, Found C7r 47.12 46.98 46.86 H7: 5.24 5.19 5.24 N71 1832 18.31 18.57 Br7l 20.92 20.87 20.68

EXAMPLE 14 The double chloride of zinc and N-[(4'-di-B-hydroxyethylamino)phenyl] 3-amino 2-aza benzoquinone diimine is prepared as follows:

There is heated under reflux for two hours, with agitation, a reaction mixture of 0.01 mole (1.09 g) 2,6- diaminopyridine, 0.01 mole (2.10 g) paranitroso di-B- hydroxyethylaniline and 1.6 g anhydrous zinc chloride in 25 cc absolute ethanol. After cooling, the double chloride of zinc and the desired azaindamine is filtered from the reaction mixture and washed with hot absolute ethanol. 2.4 g of the chromatographically pure product is obtained.

EXAMPLE 15 Preparation of N-[ 4 '-diethylamino )-2 chlorophenyll-3-amino-2-aza benzoquinone diimine of the formula 0.01 mole (2.71 g) of 2-chloro-4-N,N-diethylamino aniline and 0.01 mole (1.09 g) of 2,6-diaminopyridine are dissolved in 50 cc of a 50% hydroacetonic solution to which has been added 5 cc of ammonia (22Be). To the resulting solution there is then added 0.03 mole (6.84 g) of ammonium persulfate in 25 cc of water.

The salt of the above indamine precipitates and it is then filtered and redissolved in 50 cc of boiling water. The resulting aqueous boiling solution is then alkalinized with cc of ammonia (22Be). After cooling, the above indamine precipitates and is then filtered, washed with water and dried under a vacuum. The product is chromatographically pure and melts at 175C.

Calculated for Analysis C H N CI Found C% 60.86 60.75 60.60 H% 5.61 5.41 5.58 N% 22.20 22.00 22.37

EXAMPLE 16 Preparation of N-[ (4 -ethyl piperidinoethylamino)phenyl]-3-amino-2-aza benzoquinone diimine dihydrochloride of the formula To 10 cc of water there are added 0.01 mole (1.09 g) of 2,6-diaminopyridine and 0.01 mole (3.34 g) of 4- nitroso-N-ethyl-N-B-piperidinoethyl aniline dihydrochloride.

The resulting mixture is heated with agitation for 1 hour at which point the mixture is then cooled to 0C. The above azaindamine in the form of the dihydrochloride thereof crystallizes and is filtered therefrom. After recrystallization in ethanol and drying under a vacuum, the product melts with decomposition at 230C.

The following dye composition is prepared:

Dye of Example 1 Water, q.s.p.

This composition when applied to white hair for 20 minutes imparts thereto, after rinsing and shampooing, a Nile green shade.

EXAMPLE 18 The following dye composition is prepared:

f5 1 l I This composition when applied to dark brown hair rifle? fg e 100 g for 20 minutes imparts thereto, after rinsing and sham- Ammonia (22Be). q- -P P 9 pooing, a raven black coloration.

This composition, when applied to 95% white hair for EXAMPLE 24 three minutes, imparts thereto, after rinsing and sham- The f ll i dye Composition is prepared; pooing, an elegant turquoise blue shade.

EXAMPLE 19 10 Dye of Example 2 0.1 g Q I Water, q.s.p. 100 g The following dye composition is prepared:

This composition, when applied to 95% white hair for y of Example 1 OJ 2 20 minutes, im arts thereto, after rinsin and sham 00- B l l l 5 p g p uty gyco g Lauryl alcohol oxylthylenated [5 a J green Shadewith 10.5 moles ethylene oxide 5 g Water, q.s.p. I00 g EXAMPLE 25 This composition, when applied to 95% white hair for The followmg dye composition prepared:

minutes, imparts thereto, after rinsing and shampooing, a greenish-blue shade. 20 Dye f Example 2 0 g Water, q.s.p. 100 g EXAMPLE 20 The following dye composition is prepared: This composition, when applied to chestnut hair for 20 minutes, imparts thereto, after rinsing and shampooing, a brown hue with bronze highlights. Dye of Example 1 0.02 g N-[ (2,4'-diamino 5'-methoxy) phenyl] benzoquinone imine 0.] g EXAMPLE 26 ig g'g fg zgg gffl ig'f PH 3 g The following dye composition is prepared: Water, q.s.p. I00 g 30 Dye of Example 2 0.04 g This composition, applied to white hair for 20 N [(2,'4, diamino 5, meth0xy) minutes, imparts thereto, after rinsing and shampooing phenyl] benzoquinone imine (H5 g a dark green bronze coloration. Ethyl alcoho 5) l0 g Water, q.s.p. 100 g EXAMPLE 21 The following dye composition is prepared; Th s composition, when applied to 60% white hair for i 20 minutes, imparts thereto, after rinsing and shampooin an ash gre shade with li ht u le earl hi h- D E H 002 rzil y y SP PP Y e o xam e g N [(2'.4'-diaieiino 5'-methoxy) 40 lg ts phenyl] benzoquinone imine 0.] g Nitroparaphenylene diamine 0.02 g EXAMPLE 27 g g The following dye composition is prepared: Water, q.s.p. 100 g This composition, when applied to 60% white hair for Dye f E F P F l g 20 minutes im arts thereto after rinsin 'and sham 00- [HQ 5 'methoxy) p g p phenyl] benzoquinone imine 0.1 g mg, a moire chestnut shade withpurple highlights. Nitro orthophenylene diamine 0.02 g

Ammonia (22Be), q.s.p. pH 9 EXAMPLE 22 a q.s.p. 100 g The followmg dye composmon ls prepared: This composition, when applied to 60% white hair for 20 minutes, imparts thereto, after rinsing and shampooing, a bronze chestnut shade.

Dye of Example 1 0.02 g N-[(2',4'-diag1eino 5'-methoxy) o 1 phenyl] nzoquinone imine g ithyl 3 2( o) H 8 3 EXAMPLE 28 mmonia( Be), .s. Water q P The following dye composition is prepared.

This composition, when applied to white hair for Dye of Example 3 0 l g 15 minutes, imparts thereto, after rinsing-and shampoo- 60 Ammonia (22Be), q.s.p. pH 8 ing, an ashy grey shade. 7 Water, q.s.p. 100 g EXAMPLE 23 This composition, when applied to white hair for The following dye composition is prepared: 20 minutes, imparts thereto, after rinsing and shampoo- 65 ing, an elegant greenish blue coloration. Dye of Exam le l I 0.2 g i EXAMPLE 29 Ammonia (2 "Be), q.s.p. pH 9 Water, q.s.p. g The following dye composition is prepared:

Dye of Example 4 l g Ammonia (22Be). q.s.p. pH 9.5 Water, q.sp. 100 g This composition, when applied to 95% white hair for 10 minutes, imparts thereto, after rinsing and shampooing, a pale greenish blue shade.

EXAMPLE 30 The following hair setting lotion composition is prepared:

Dye of Example 1 0.012 g Toluylene blue acetate 0.012 g Nitroparaphenylene diamine 0.1 g Copolymer of crotonic acid and vinyl acetate (M.W. 45,000

50.000, 10:90) 2 g Ethyl alcohol (96). q.s.p. 50 Water. q.s.p. 100 g This hair setting lotion, when applied to 100% white hair, imparts thereto a silvery medium grey shade.

EXAMPLE 31 The following hair setting lotion composition is prepared:

Dye of Example 1 0.006 g Toluylene blue acetate 0.012 g Nitroparaphenylene diamine 0.2 g Copolymer of crotonic acid and vinyl acetate (M.W. 45,000

50,000, 10:90) 2 g Ethyl alcohol (96), q.s.p. 50 Water. q.s.p. 100 g This hair setting lotion, when applied on straw colored hair, imparts thereto a dark golden blond coloration.

EXAMPLE 32 The following hair setting lotion composition is prepared:

Dye of Example 1 0.01 g N[(2'.4-diamino '-methoxy) phenyl] 2-methyl S-methoxy benzoquinone diimine acetate 0.1 g Copolymer of crotonic acid and vinyl acetate (M.W. 45,000

50,000, :90) 2 g Ethyl alcohol (96), q.s.p. 50 Water. q.s.p. 100 g This hair setting lotion, when applied to 100% white hair, imparts thereto a very intense ultramarine blue coloration.

EXAMPLE 33 The following hair setting lotion composition is prepared:

Dye of Example 2 0.05 g Copolymer of crotonic acid and vinyl acetate (M.W. 45,00050,000 l0z90) 2 Ethyl alcohol (96). q.s.p. 50 Water. q.s.p. 100 g This hair setting lotion, when applied to 100% white hair, imparts thereto a very intense and luminous greenish blue coloration.

EXAMPLE 34 This composition, when applied to 95% white hair for minutes, imparts thereto, after rinsing and shampooing, a pale green color.

5 EXAMPLE 35 The following dye composition is prepared:

20 Dye of Example 6 i 0.1 g Water, q.s.p. 100 g This composition, when applied to 60% white hair for 10 minutes, imparts thereto, after rinsing and shampooing, a slate blue shade with silver highlights.

EXAMPLE 36 The following hair setting lotion composition is prepared:

Dye of Example 6 0.1 g Copolymer of crotonic acid and vinyl acetate (M.W. 45,000 50,000, 10:90) 2 g Ethyl alcohol (96), q.s.p. 50 Water, q.s.p. 100 g This hair setting lotion, when applied to 100% white hair, imparts thereto an intense royal blue shade.

EXAMPLE 37 0 The following dye'composltlon 18 prepared:

Dye of Example 5 0.15 g Water, q.s.p. 100 g Ammonia (22Be), q.s.p. pH 9 This composition, when applied to 95% white hair for 20 minutes, imparts thereto, after rinsing and shampooing, a light blue color.

EXAMPLE 38 The following dye composition is prepared:

Dye of Example 7 0.05 g Water, q.s.p. 100 g This composition, when applied to 95% white hair for 5 minutes, imparts thereto, after rinsing and shampooing, a very lightly green-tinted blue.

EXAMPLE 39 Dye of Example 8 0.07 g Copolymer of crotonic acid and vinyl acetate (M.W. 45,000-

50,000, 10:90) 2 g Ethyl alcohol (96), g.s.p. 50 Water, g.s.p. 100 g This hair setting lotion, when applied to 100% white hair, imparts thereto a very intense peacock blue.

EXAMPLE 40 The following hair setting lotion composition is prepared:

Dye of Example 13 0.015 g Copolymer of crotonic acid and vinyl acetate (M.W. 45,000

50,000, 10:90) 2 g Ethyl alcohol (96), q.s.p. 50%

Water, q.s.p. 100 g Triethanolamine, q.s.p. pH 7 This hair setting lotion, when applied to 100% white hair, imparts thereto a light silvery blue.

EXAMPLE 41 The following hair setting lotion composition is prepared:

Dye of Example 14 0.005 g Copolymer of crotonic acid and vinyl acetate (M.W. 45,000 50,000, lz90) 2 g Ethyl alcohol (96), q.s.p. 50

Water, q.s.p. I00 g Triethanolamine, q.s.p. pH 7 This hair setting lotion, when applied on bleached hair, imparts thereto a pronouncedly pearly pale green.

EXAMPLE 42 The following hair setting lotion composition is prepared:

Dye of Example l0 0.! g Copolymer of crotonic acid and vinyl acetate (M,W. 45,000 50,000, 10:90)

Ethyl alcohol (96), q.s,p. Water, q.s.p.

Triethanolamine, q.s.p.

This hair setting lotion, when applied to unbleached hair, imparts thereto a turquoise blue.

EXAMPLE 43 The following dye composition is prepared:

Dye of Example [0 0.0025 g Water, q.s.p. 100 g Ammonia (22Be), q.s.p. pH 10 This composition, when applied to bleached hair for two minutes at ambient temperature, imparts thereto, after rinsing and shampooing, a pearly appearance with pale green highlights.

EXAMPLE 44 The following hair setting lotion compositon is prepared:

Dye of Example 1 1 0.035 g N-[(4-amino)phenyl] 3-amino 6 methyl benzoquinone imine Copolymer of vinyl acetate and crotonic acid (M.W. 45,000 50,000, 90: I0) 2 g Ethyl alcohol (96), q.s.p.

Water, q.s.p. lOO g Triethanolamine, q.s.p. pH 7 This hair setting lotion, when applied to bleached hair, imparts thereto a pearly light violet color.

EXAMPLE 45 The following dye composition is prepared:

Dye of Example 12 0.05 g Water, q.s.p. 100 g Ammonia (22Be), q.s.p. pH 10 This composition, when applied to bleached hair for 20 minutes at ambient temperature, imparts thereto, after rinsing and shampooing, a pearly, pale emerald 15 green shade.

EXAMPLE 46 The following dye solution is prepared:

Dye of Example 15 0.05 g Ethyl alcohol (96 titer) 40 g Water, q.s.p. 1 I00 g Lactic acid, q.s.p. pH 6.5

This composition, when applied to bleached hair for 20 minutes, after rinsing and shampooing, imparts thereto a very intense peacock blue coloration.

EXAMPLE 47 The following dye solution is prepared:

Dye of Example l6 0.15 g Ethyl alcohol (96 titer) 25 g Ammonia (22Be), q.s.p. pH 9 Water, q.s.p. 100 g This composition, when applied to bleached hair for 20 minutes, imparts thereto, after rinsing and shampooing, a very luminous and intense blue coloration.

EXAMPLE 4s The following hair setting lotion is prepared:

Dye of Example 9 4,4'-dihydroxy-2-amino azobenzene N-[ (4'-amino3-methyl )phenyl 2,6-dimethyl-3-acetamino benzoquinone imine N-[ (4'-hydroxy-2-chloro )phenyl Z-methyl-S-ureido benzoquinone imine Gantrez ES 435 (butyl monoester of methylvinyl ether/maleic anhydride copolymer 3 g Ethanol (96) 50 g Ammonia, q.s.p. pH 8.5 Water, q.s.p. 100 g EXAMPLE 49 The following hair setting lotion is prepared:

Dye of Example 13 Meldolas Blue (oxazinic dye sold -Continued by Francolor) 0.03 g Polyvinylpyrrolidone K30-Mol.

Wt 40,000. viscosity 2.4 cp in a aqueous solution at C 2.5 g lsopropyl alcohol 35 g Ammonia. q.s.p. pH Water. q.s.p. 100 g This hair setting lotion when applied to white hair imparts thereto after drying a steel blue coloration.

EXAMPLE 50 The following hair setting lotion is prepared:

Dye of Example 12 l,4-di-( B-morpholino ethyl) amino anthraquinone Copolymer of polyvinylpyrrolidone and vinyl acetate (70/30. M.W. 40.000)

lsopropyl alcohol Ammonia, q.s.p.

Water. q.s.p.

MUG

This hair setting lotion when applied to natural gray hair imparts thereto, after drying, an ocean green coloration.

EXAMPLE 51 The following hair setting lotion composition is prepared:

Dye of Example l4 0.006 g 2.4.6-trihydroxy azobenzene 0.01 g Bis-methyl 1.5-(anthraquinonylamino ethyl) methyl morpholinium] sulfate 0.02 g

Copolymer of polyvinylpyrrolidone and vinyl acetate (60/40. M.W.

50.000 2 g Ethanol, 96 titer g Ammonia. q.s.p. pH 6 Water. q.s.p. 100 g This hair setting lotion when applied to gray hair imparts thereto, after drying, an orange gray coloration.

EXAMPLE 52 The following hair setting lotion composition is prepared:

This hair setting lotion when applied to bleached hair imparts thereto, after drying, an intense turquoise blue coloration.

EXAMPLE 53 The following dye composition in gel form is prepared:

Dye of Example l3 0.] g

, -Continued N-l 2'-chloro-4-hydroxy Z-phenyl methyl-S-ureido benzoquinone imine 0.05 g N-[ 4'-amino )phenyl l-3-ureido benzoquinone imine 0.05 g Nonyl phenol oxyethylenated with 9 moles of ethylene oxide l2.5 g Diethanolamide of the fatty acids of coco and coprah 6.25 g Butyl glycol 3 g Propylene glycol 8 g Ammonia, q.s.p. pH 9.5 Water, q.s.p. g

This composition is applied'to gray hair for 20 minutes at ambient temperature. Thereafter the hair is rinsed, shampooed, rinsed again and dried. The resulting color of the hair is an intense blue green coloration.

The same composition when applied to previously bleached hair, under the same conditions, imparts thereto a very lively blue coloration.

What is claimed is:

l. A dye composition for coloring keratinic fibers comprising a solution of an indamine in a solvent selected from the group consisting of water and wanter and a lower alkanol, said indamine being present in amounts effective to dye said deratinic fibers and being selected from the group consisting of a. an indamine having the formula wherein R R R and R each independently are selected from the group consisting of hydrogen, halogen, lower alkyl having 1-4 carbon atoms and lower alkoxy having l-4 carbon atoms, and R and R independently are selected from the group consisting of hydrogen, lower alkyl having l-4 carbon atoms and lower alkyl having l-4 carbon atoms and substituted with a member selected from the group consisting of hydroxy, acylamino, carbamyl and piperidino,

b. an acid salt of said indamine in (a), and

c. a double chloride of zinc and said indamine in (a).

2. The dye composition of claim 1 having a pH between 3-10 inclusive.

3. The dye composition of claim 2 having a pH between 5-9 inclusive.

4. The dye composition of claim 1 wherein said indamine is present in amounts ranging from 0.002-1 percent by weight of said composition.

5. the dye composition of claim 1 also including a dye selected from the group consisting of azobenzene, aminoanthraquinone and the quaternary thereof, nitrobengene, indoaniline, indophenol and another indamine 6. The dye composition of claim 1 wherein the solvent is water and a lower alkanol and said composition also includes a film forming resin in amounts of about 1 9 1-3 weight percent based on the weight of said compo sition.

7. The dye composition of claim 6 wherein said indamine is present in amounts ranging from 0.0021 percent by weight of said composition.

8. The dye composition of claim 6 wherein said lower alkanol is selected from the group consisting of ethanol and isopropanol.

9. The dye composition of claim 6 wherein the lower alkanol is present in amounts of about 20-50 weight percent of said composition.

10. The dye composition of claim 6 wherein said film forming resin is polyvinylpyrrolidone having a molecular weight of about 10,000 to 70,000.

l 1. The dye composition of claim 6 wherein said film forming resin is a 10:90 copolymer of crotonic acid and vinyl acetate having a molecular weight of 45,000-50,000.

12. The dye composition of claim 6 wherein said film 20 forming resin is a copolymer of vinylpyrrolidone and vinyl acetate, having a molecular weight of about 50,000.

13. The dye composition of claim 6 wherein said film forming resin is the butyl monoester of the copolymer of methylvinyl ether and maleic anhydride.

14. A method for dyeing human hair comprising impregnating the hair with a dye composition according to claim 1 in amounts effective to dye the hair, permitting said composition to remain in contact with said hair for a period of time ranging from about 5 to 30 minutes, rinsing said hair with water and drying said hair.

15. A method for dyeing and setting human hair comprising impregnating wet hair with a dye composition according to claim 6 in amounts effective to dye and set the hair, rolling up said hair and drying said hair. 

1. A DYE COMPOSITION FOR COLOURING KERATINIC FIBERS COMPRISING A SOLUTION OF AN INDAMINE IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF WATER AND WANTER AND A LOWER ALKANOL, SAID INDAMINE BEING PRESENT IN AMOUNT EFFECTIVE TO DYE SAID DERATINIC FIBRES AND BEING SELECTED FROM THE GROUP CONSISTING OF A. AN INDAMINE HAVING THE FORMULA
 2. The dye composition of claim 1 having a pH between 3-10 inclusive.
 3. The dye composition of claim 2 having a pH between 5-9 inclusive.
 4. The dye composition of claim 1 wherein said indamine is present in amounts ranging from 0.002-1 percent by weight of said composition.
 5. the dye composition of claim 1 also including a dye selected from the group consisting of azobenzene, aminoanthraquinone and the quaternary thereof, nitrobenzene, indoaniline, indophenol and another indamine dye.
 6. The dye composition of claim 1 wherein the solvent is water and a lower alkanol and said composition also includes a film forming resin In amounts of about 1-3 weight percent based on the weight of said composition.
 7. The dye composition of claim 6 wherein said indamine is present in amounts ranging from 0.002-1 percent by weight of said composition.
 8. The dye composition of claim 6 wherein said lower alkanol is selected from the group consisting of ethanol and isopropanol.
 9. The dye composition of claim 6 wherein the lower alkanol is present in amounts of about 20-50 weight percent of said composition.
 10. The dye composition of claim 6 wherein said film forming resin is polyvinylpyrrolidone having a molecular weight of about 10,000 to 70,000.
 11. The dye composition of claim 6 wherein said film forming resin is a 10:90 copolymer of crotonic acid and vinyl acetate having a molecular weight of 45,000-50,000.
 12. The dye composition of claim 6 wherein said film forming resin is a copolymer of vinylpyrrolidone and vinyl acetate, having a molecular weight of about 50,000.
 13. The dye composition of claim 6 wherein said film forming resin is the butyl monoester of the copolymer of methylvinyl ether and maleic anhydride.
 14. A method for dyeing human hair comprising impregnating the hair with a dye composition according to claim 1 in amounts effective to dye the hair, permitting said composition to remain in contact with said hair for a period of time ranging from about 5 to 30 minutes, rinsing said hair with water and drying said hair.
 15. A method for dyeing and setting human hair comprising impregnating wet hair with a dye composition according to claim 6 in amounts effective to dye and set the hair, rolling up said hair and drying said hair. 